Feedeioh w



(Model.)

F. W. KRANTZ.

GRANK PIN OILBR.

No., 330,904.` .Patented Nov. 24, 1885.

www

llniTnn STATES PATENT Trice.

FREDRlOI-I W. KRANTZ, OF DETROIT, MICHIGAN, ASSIGNOR TO THE MICHI- GAN LUBRIOATOR COMPANY, OF SAME PLACE.

@RANK-PIN oiLER.

SPECIFICATION forming part of Lettersv Patent No. 330,904, dated November 24, 1885.

Application filed September 17, 1885. Serial No. 177,367. (Model.)

To all whom t may concern:

Be it known that I, FREDRIOH W. KRANTZ, of Detroit, in the county of Wayne and State of Michigan, have invented certain new and usefulIInprovernents in Crank-Pin Oilers, of

which the following is a specication.

My invention relates to an oiler for crankpins and for use in similar places; and the improvements consist in features and details ;O hereinafterfully explained,whereby the action of the device is rendered automatic, the construction simplified, and the device made durable. l

In the accompanying drawings, Figure 1 is I 5 a perspective View of my device as applied to Y a` crank-pin; Fig. 2, a vertical central section of the oiler; Fig. 3, ahorizontal section on the line x x of Fig. 2.

A indicates a metallic shell of suitable size,

2O the body of which is made thin and light and cut away or formed with openings c, as shown in Figs. 1, 2, and 3. The base of shell A is :made of polygonal form to receive a wrench or other tool, by which to screw it into its socket in the pitman or part to which it is applied, and from the bottom of said base a neck, b, extends downward, which is suitably threaded to enter the socket mentioned. -Within the shell there rises a central stem, B, which is in effect (and may be in reality) a continuation of the neck b, said stem extending to within a short distance of the top of the shell A, and terminating in a broad disk, O, preferably conveX on its upper face, as shown in Fig. 2. The

stem B is formed with a central hole or passage, c, which extends from the top of said stem and its disk C down through the neck b and to the lower extremity thereof, as shown in Fig. 2.

40 Placed within the shell A is a glass cylinder, D, open at both ends, and resting at its lower end upon a packing-ring, E, preferably of cork, which in turn rests upon the base or bottom of the shell A.

F indicates the cap or cover of the oiler, formed with a depending fiange or rim threaded on its interior to screw upon the threaded upper end of shell A. The inner or under face of cap F is turned ilat and true,

5o and bears upon apacking-ring, G, which rests upon the upper end of the glass cylinder D.

Thus constructed, the parts are put together in the manner stated-that is to say, with packing-ring E resting upon the base or bottom of shell A, cylinder D resting upon pack- 5 5 ing-ring E, packing-ring G lying upon the upper end of cylinder D, and cap or cover F resting upon packing-ring G. The cap is then screwed firmly upon shell A, and the several parts are brought together so snugly and 6o closely as toproduce tight joints and prevent the escape of oil.

The cap or cover F has a central hole or opening thr ugh it, which is threaded to receive a valve or pointed screw stem, H, the point or nose of which enters the upper end of passage c as the stem is screwed down, and serves to close the mouth of said passage more or less, as required.

To prevent the stem H from working up or 60 down by reason of the jar or motion of the machinery, I provide a jam-nut, I, which encircles the .stem H, and when screwed down against the cap or cover F serves to hold the stem against turning. For convenience, I make the jam-nut I in the form of :a thumbnut, as shown.

The device, being thus constructed, is applied to a pitman or other part attached to a crank-pin and partaking of the motion there- 8o of, or to any other moving part requiring to be oiled. The throw of the crank-pin being quick and sudden, the oil with which cylinder D is supplied is thrown upward into the top o.' the cylinder as the crank-pin and oiler de- 85 scend, and is caused to pass around and over the top of the disk and the portion of the stem H below the cap'or cover. The oil, iiowing down the stem and across the mouth of passage c, finds its way into said passage and 9o through the same down to the crank-pin to be oiled. A moderate speed or motion is sufficient to cause the oil to be thrown to the top of the cylinder D and over the disk C, so that a quantity of oil sufficient to supply the requirements of the part to be oiled will run down through the stern to said part; but as the speed increases the centrifugal force, if the oiler be applied to a crank-pin or other part having a circular path of movement, or the -roo inertia, if the oiler be applied to a reciprocating body, will be increased exactly in proportion to the increase of speed or motion. This increase of force with which the oil is thrown into the top of the cylinder creates a pressure by reason of which the oil is forced through the passage c of stem B, instead of being left to flow down by gravity alone. It will therefore be seen that just in proportion to the increase of speed or motion, and consequent need vof more oil, the supply of oil to the moving part is increased, or, in other words, thel supply of oil delivered to the Working-surfaces automatically increases and diminishes with and by reason of increase and diminution of speed or motion. As the oil is thrown upward by the motion of the oiler it encounters the disk, and is by it directed outward to the Walls of the oil-chamber, whence it passes above the disk. In this way the oil above the disk is forced toward the center, and consequently carried with certainty and under pressure to the outlet through the tubular stem. l

By setting the stem H higher or lower, as required, the mouth of passage c may be opened or closed to any required extent, and the flow of oil to the crank-pin thus regulated with the greatest nicety.

The screw or valve stem, after being once set or adj usted, seldom requires to be reset, and in many places never requires further adjustment.

It will be seen that when the machinery is at rest no oil can pass from the cylinder D, and hence none is wasted; nor is the machine made dirty andcaused to collect dust and dirt by reason of an oversupply of oil and consequent iiowing out of the same around the crank-pin.

The glass cylinder is used for stationary engines, and generally where the machinery is protected against extreme cold weather, or Where there is little or no danger of breakage of theglass; but for locomotives and like machinery I omit the glass andmake the body of metal. The precise position of the cylinder and stem is not important, and the stem may be placed at an angle or even horizontally. So, too, the passage c might be made to open beheath-the disk, which in such case should iill the cylinder.

Having thus described my invention, what I claim is` l. rIhe herein-described oiler, consisting of shell A, provided with openings a, tubular stem B, and disk C, transparent cylinder D, cap F, and screw-stem H. Y

2. An oiler consisting of a closed oil-receptacle, a tubular stern therein rising to a point above the oil-level, a disk carried by the ,upper end of the tubular stem, and a valve-stem passing through the cap of the oiler and into the top of the tubularstem, as shown.

V3. An oiler consisting of a closed oil-receptacle, a tubular stem therein rising to a point above the oil-level, and a disk carried by the upper end of the tubular stem and of a less diameter than the interior of the receptacle.

4. The herein-described oiler, consisting of shell A, having openings a, tubular stem B, and disk C, cylinder D, packings E and G, cap or cover F, screw-stem H, and jam-nut I."y

FREDRIOH W. KRANTZ.

Witnesses:

F. W. MARVIN, JNO. B. CoRLiss 

